Multiplex communications – Wide area network – Packet switching
Patent
1993-11-30
1995-01-24
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 54, 34082506, 34082515, 34082518, 379 14, 379 15, 379 16, 379 34, 379122, 379136, 379220, 379221, 379247, H04J 314
Patent
active
053847687
ABSTRACT:
A tracing system displays a transmission route between multiplexers in a transmission network. The system includes a MUX map database of the states in which multiplexers in each of stations are connected to each other, a route map database of attributes of transmission routes between stations, a station map database of transmission routes accommodated in each of the stations, a route map processing unit for tracing, using the route map database, a transmission route from a starting station to a terminating station, a MUX map processing unit for tracing, using the MUX map database, a connecting path in the terminating station of the transmission route traced by the route map processing unit, a station map processing unit for tracing a transmission route corresponding to a back-to-back connecting formation using the station map database, a changing unit for changing the information of the tracing start point based on a position of a multiplexer connected to an end of the transmission route corresponding to the back-to-back connecting formation, a tracing control unit for switching between the route map processing unit, the MUX map processing unit, the station map processing unit and the changing unit so that the transmission route is traced from the multiplexer at the tracing start point, to a multiplexer opposite to the multiplexer at the starting point, and a display unit for displaying the traced transmission route and connecting path.
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patent: 4513411 (1985-04-01), Fraser
patent: 4756019 (1988-07-01), Szybicki
patent: 5021949 (1991-06-01), Morten et al.
patent: 5049873 (1991-09-01), Robins et al.
patent: 5136690 (1992-08-01), Becker et al.
Blum Russell W.
Fujitsu Limited
Olms Douglas W.
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